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From: Konstantin Belousov <kib@FreeBSD.org>
Date: Tue, 15 Sep 2009 12:51:22 +0000 (UTC)
To: cvs-src-old@freebsd.org
X-FreeBSD-CVS-Branch: RELENG_8
Subject: cvs commit: src/sys/ufs/ffs ffs_softdep.c
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kib         2009-09-15 12:51:22 UTC

  FreeBSD src repository

  Modified files:        (Branch: RELENG_8)
    sys/ufs/ffs          ffs_softdep.c 
  Log:
  SVN rev 197222 on 2009-09-15 12:51:22Z by kib
  
  MFC r196888:
  The clear_remove() and clear_inodedeps() call vn_start_write(NULL, &mp,
  V_NOWAIT) on the non-busied mount point. Unmount might free ufs-specific
  mp data, causing ffs_vgetf() to access freed memory.
  
  Busy mountpoint before dropping softdep lk.
  
  Approved by:    re (kensmith)
  
  Revision   Changes    Path
  1.234.2.3  +21 -5     src/sys/ufs/ffs/ffs_softdep.c